fix: allow to use rustls while also using sha2 and hmac

[iTrooz]

Fix #174

This will allow you to specify hmac and sha2 dependencies, while disabling default features to enable rustls feature

[Copilot]

Pull Request Overview

This PR refactors feature flags in Cargo.toml to support using rustls alongside sha2 and hmac by grouping crypto deps into a single feature.

• Introduce default-crypto to bundle sha2 and hmac
• Update default features to include default-crypto instead of listing crypto deps individually
• Keep TLS options unchanged

Comments suppressed due to low confidence (2)

Cargo.toml:23

• Consider updating the README or other documentation to describe the new default-crypto feature, its purpose, and how to enable it in combination with rustls.

default-crypto = ["dep:sha2", "dep:hmac"]

Cargo.toml:19

• Add a CI or integration test that builds the crate with --no-default-features --features rustls-tls,default-crypto to ensure compatibility and prevent regressions.

default = ["default-tls", "default-crypto"]

[HJLebbink]

LGTM